CN1900142B - Polyamic acid, polyimide and optical material - Google Patents
Polyamic acid, polyimide and optical material Download PDFInfo
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- CN1900142B CN1900142B CN2006100798426A CN200610079842A CN1900142B CN 1900142 B CN1900142 B CN 1900142B CN 2006100798426 A CN2006100798426 A CN 2006100798426A CN 200610079842 A CN200610079842 A CN 200610079842A CN 1900142 B CN1900142 B CN 1900142B
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Abstract
A polyimide excelling in heat resistance, chemical resistance, water repellency, dielectric characteristics, electrical characteristics, and optical characteristics and a polyamide acid useful as theraw material therefor are provided. Specifically, a polyamide acid comprising a repeating unit represented by the following formula (1).
Description
The application is application number the dividing an application for China's application of " polyamic acid, polyimide and optical material " that be CN02126201.2 (applying date is on July 15th, 2002), denomination of invention.
Technical field
The optical material that the present invention relates to the polyimide of thermotolerance, resistance to chemical reagents, water-repellancy, dielectric characteristics, electrical property and excellent in optical properties, makes as the useful polyamic acid of its precursor and this polyimide.
Background of invention
As the mainstay industry in the informationized society, electronic industry development at present is swift and violent.Effect to the contributive macromolecular material of development of electronic technology is very big, if the high molecular words that insulation usefulness and microfabrication are used just are far from being current electronic age.This is the macromolecular material of principal character to stop electric current to flow; if suitable condition is arrived in the structural adjustment to its molecule and aggregate; find its strong dielectricity, electronics and ionic high conductivity, superconductivity, also had ferromagnetism etc.; have the various functions of metal and semi-conductor and even the characteristic that inorganic materials possessed in the past; so; in recent years, very active as the high molecular research field of electronic functional material.In recent years in, at interlayer dielectrics such as transistor, thyristor, IC and passivating material, with the silicone resin be representative joint coating, reduce the most advanced and sophisticated coating of mold stresses with being used on the various uses such as the moisture protection plaster of cushioning material, the alpha-ray sealing material that tackles the soft-error of memory component, template jointing material, anticorrosive additive material, semiconductor sealing material, mixing IC, chip carrier tape that TAB uses, multilayer circuit board.
In these macromolecular materials, from its excellent function and thermotolerance equal angles, polyimide is noticeable, and its research and development are very in vogue at present, and try out in above-mentioned Application Areas.For example: open to disclose in the flat 5-1148 communique the spy and only contain the perfluorination polyimide that replaces the repeating unit of C-H (c h bond) to form with carbon-fluorine bond (C-F key).Yet, though this polyimide has enough thermotolerances, is the few material of light transmission loss near infrared light, particularly the optical communication wavelength region may (1.0-1.7 μ m) the making optoelectronic integrated circuit, but when the combination above-mentioned materials prepares photoelectricity guided wave road or photoconductive fiber core, foreskin respectively, about refractive indices n=0.2%, can not provide more than the practical refractive indices n=0.5% that needs.
In addition, as mentioned above, the polyimide of thermotolerance, resistance to chemical reagents, water-repellancy, dielectric characteristics, electrical property and excellent in optical properties does not still exist at present.For this reason, the present invention In view of the foregoing, polyimide with following characteristics to be provided and to be purpose as the polyamic acid of its raw material.The thermotolerance of this polyimide, resistance to chemical reagents, water-repellancy, dielectric characteristics, electrical property and excellent in optical properties, for original perfluor polyimide, refractive indices n surpasses 0.5%.
Another object of the present invention provides the optical material with above-mentioned polyimide preparation.
Summary of the invention
Investigators of the present invention, for reaching above-mentioned all purposes, carried out studying with keen determination, found that the polyimide of forming by carbon-fluorine bond (C-F key) and/or carbon-fluorine carbon (C-Cl key) and form by specific repeating unit, its thermotolerance, resistance to chemical reagents, water-repellancy, dielectric characteristics, electrical property and excellent in optical properties have been finished the present invention based on this.
The invention provides chloride atom and fluorine atom and the polyamic acid that forms by the repeating unit shown in the following formula (1).
(in the formula, X and X ' represent divalent organic group respectively independently; Y and Y ' represent chlorine, bromine or iodine atom respectively independently; P and p ' represent to be bonded on the quantity of the fluorine atom (F in the formula (1)) on the corresponding phenyl ring respectively separately, are the integers of 0-3; Q and q ' represent the integer of 0-3 respectively separately; P+q is 3, p '+q ' is 3.)
In addition, the invention provides chloride atom and fluorine atom, by the polyimide of forming with the repeating unit shown in the following formula (2).
(in the formula, X and X ' represent the organic group of divalence respectively separately; Y and Y ' represent chlorine, bromine or iodine atom respectively separately; P and p ' represent to be connected on the number of the fluorine atom (F in the formula (2)) on the corresponding phenyl ring respectively separately, are the integers of 0-3; Q and q ' represent the integer of 0-3 respectively separately; P+q is 3, p '+q ' is 3.) this polyimide can satisfy high transmitance and thermotolerance in communication wavelength region-wide simultaneously, in addition, because its resistance to chemical reagents, water-repellancy, dielectric characteristics, electrical property and excellent in optical properties, so, be expected and can mix on the various optical materials such as photoelectricity guided wave road that carry on the real fabrication line plate and use with packaged material, optical element, optoelectronic integrated circuit (OEIC), photoelectron at interlayer dielectric, the semiconductor element that printed circuit board (PCB), LSI use.
Also have, investigators of the present invention, for reaching above-mentioned all purposes, research found that with keen determination, be not only carbon-fluorine bond (C-F key), even the polyimide that part is replaced by the chemical bond of the monad of the halogen atom beyond carbon and the fluorine atom also has excellent thermotolerance, resistance to chemical reagents, water-repellancy, dielectric characteristics, electrical property and optical characteristics, finished the present invention thus.
Promptly the invention provides the polyamic acid that has with the repeating unit shown in the following formula (i).
(in the formula, X represents the organic group of 4 valencys; Y represents chlorine, bromine or iodine atom; P represents the number of the fluorine atom (F in the formula (i)) that connects on the phenyl ring, is the integer of 0-3; Q represents the integer of 1-4; P+q is 4.)
The polyimide that has with the repeating unit of following formula shown in (iii) also is provided in addition.
(in the formula, X represents the organic group of 4 valencys; Y represents chlorine, bromine or iodine atom; The number of the fluorine atom that p represents to connect on the phenyl ring (formula (iii) in F) is the integer of 0-3; Q is the integer of 1-4; P+q is 4.) this polyimide can satisfy transmitance high in communication wavelength is region-wide and thermotolerance simultaneously, in addition, its resistance to chemical reagents, water-repellancy, dielectric characteristics, electrical property and optical characteristics excellence are so be expected to mix on the various optical materials such as photoelectricity guided wave road that carry on the real fabrication line plate with packaged material, optical element, optoelectronic integrated circuit (OEIC) and photoelectron and use at interlayer dielectric, semiconductor element that tellite, LSI use.
The accompanying drawing summary
Fig. 1 represents the figure of the IR spectrum recording paper of the polyamic acid that makes in the example 1.
Fig. 2 represents the figure of the IR spectrum recording paper of the polyimide that makes in the example 2.
Fig. 3 represents the figure of the IR spectrum recording paper of the polyamic acid that makes in the example 3.
Fig. 4 represents the figure of the IR spectrum recording paper of the polyimide that makes in the example 4.
Detailed Description Of The Invention
Introduce in detail below the present invention.
The polyamic acid that the present invention is primary provides chloride atom and fluorine atom and formed by the repetitive shown in the following formula (1).
(in the formula, X and X ' represent separately respectively the organic group of divalent; Y and Y ' represent separately respectively chlorine, bromine or iodine atom; The number of the fluorine atom (F in the formula (1)) that p and p ' connect on the corresponding phenyl ring of expression separately respectively is the integer of 0-3; Q and q ' represent separately respectively the integer of 0-3; P+q is 3, p '+q ' is 3. )
And contain polyamic acid in aforementioned (1) of represented repetitive of useful following formula (3) and/or (3 ').
(in the formula, X and X ' represent separately respectively the organic group of divalent. )
This that formed by carbon-fluorine bond (C-F key) and/or carbon-chlorine key (C-Cl key) and be the raw material that preparation has the polyimides of excellent heat resistance, resistance to chemical reagents, water proofing property, dielectric property, electrical property and optical characteristics by the polyamic acid that specific repetitive forms.
Among the present invention, polyamic acid must contain chlorine atom and fluorine atom. At this moment, the content of chlorine atom has no particular limits in the polyamic acid, can consider to be convenient to preparation and desired characteristic (as: dissolubility, heat resistance, resistance to chemical reagents, water proofing property, dielectric property, electrical property and optical characteristics) does suitably to select, for the gross mass of polyamic acid, to contain the following chlorine atom of 60% (quality) as good. If the content of chlorine atom surpasses 60% (quality), the decreased solubility of polyamic acid causes preparing relatively difficulty of polyamic acid. In addition, be necessary condition because polyamic acid of the present invention contains the chlorine atom, so the lower limit of chlorine atom content can not be 0% (quality) in the polyamic acid. If consider dielectric constant, refractive index, heat resistance and the anti-hygroscopicity etc. of the polyimides that formed by it, the content of chlorine atom in the polyamic acid, for the gross mass of polyamic acid, take 4-55% (quality) as good, with 4-30% (quality) for better.
In the present invention, polyamic acid is to contain the repetitive shown in the useful aforementioned formula (1) as necessary condition. Owing to being formed by this specific repetitive, so the polyimides that forms thus can reach desired refractive index (that is, the refractive indices n for original perfluorinated polyimides). In addition, if the polyamic acid among the present invention consider in the near infrared region, the particularly light transmission loss in optical communication wavelength region may (1.0-1.7 μ m), with carbon containing-hydrogen bond (c h bond) not for well.
In the following formula (1), the organic group of X and X ' expression divalent. At this moment, X and X ' both can be identical can be not identical yet. In addition, as the organic group of divalent can enumerate as: from the aliphatic organic group of the divalents such as cyclic alkyl, chain-like alkyl, alkylene, glycol; From divalent aromatic series organic group and their halogen-containing aliphatic and aromatic series organic groups such as benzene xenyl, Biphenyl Ether, diphenyl benzene, two phenoxy group benzene. Among them, take the aromatic series organic group of divalent as well, more preferably with the halogen-containing fragrant family organic group of divalent, best be that perhalogenation aromatic series organic group with divalent reaches " X ' " as " X " in above-mentioned (1). In this specification, carbon-hydrogen link (c h bond) that said " perhalogenation aromatic series organic group " refers in its group all is all by the carbon-halogen bond (as: group that carbon-fluorine bond (C-F key) and carbon-chlorine key (C-Cl key) have replaced. Therefore, the polyimides that is formed by them just can reach the light transmission loss in the desired refractive index refractive indices n of original perfluorinate polyimides (namely with respect to) and the optical communication wavelength region may (1.0-1.7 μ m). In addition, the example of the perhalogenation aromatic series organic group of this divalent can be enumerated perhalogeno aromatic series organic group from divalents such as benzene xenyl, Biphenyl Ether, diphenyl benzene, two phenoxy group benzene etc.
In the middle of them, as " X " in above-mentioned (1), the example of desirable divalent organic group is concatenation character or the divalent group that represents with following formula.
X in them is that concatenation character or the divalent group that represents with following formula are better.
In the formula of above-mentioned expression " X ", Z and Z ' expression halogen atom are promptly represented fluorine, chlorine, bromine or iodine atom, it is desirable to represent the fluorine or chlorine atom, be it would be desirable expression chlorine atom.In the formula of above-mentioned expression " X ", when Z and Z ' both existed, Z and Z ' both can be the same or different, and in addition, in each phenyl ring, had a plurality of Z and Z ', respectively both can be identical in each phenyl ring also can be different.
That is,, better with the divalent organic group that any one formula in concatenator or the following formula is represented as " X " in above-mentioned (1) formula.
In addition, in above-mentioned " X ", with following any formula
The divalent organic group of expression, particularly use following formula
The divalent organic group of expression is for well.
Also have, as " X ' " in above-mentioned (1) formula, the example of ideal divalent organic group can be enumerated the following formula of using
The group of expression.At this moment, Z " represent chlorine, bromine or iodine atom, it is desirable to represent the chlorine or bromine atom, it would be desirable expression chlorine atom.In addition, a represent to be connected on the fluorine atom on the phenyl ring number, for the integer of 0-4, ideal be 0,3 or 4.B represents to be connected on the Z on the phenyl ring " number, for the integer of 0-4, ideal be 0,1 or 4.Also have in the following formula, Z " in phenyl ring during for plural number (being that b is the integer of 2-4), Z " respectively both can be identical in phenyl ring also can be different.In addition, in the following formula, the total of a and b is necessary for 4 (being a+b=4).This is that c h bond does not exist for event in polyamic acid because if consider the low light loss in the optical communication wavelength region of final product polyimide.Thereby, the most desirable as " X ' " in above-mentioned (1) formula for the divalent group of representing with following formula.
In above-mentioned (1) formula, Y and Y ' expression chlorine, bromine or iodine atom, ideal are the chlorine or bromine atom, it would be desirable and represent the chlorine atom.At this moment, Y and Y ' promptly can be identical also can be inequality.Also have in the above-mentioned formula (1), p and p ' represent the number that fluorine atom on the corresponding phenyl ring engages respectively, for integer, the ideal of 0-3 is 0 or 3.At this moment, p and p ' both can be the same or different.Have, in above-mentioned (1) formula, q and q ' represent the number that Y and Y ' engage on the corresponding phenyl ring respectively again, are that 0～3 integer, ideal was 0 or 3. this moments, and q and q ' both can be the same or different.In the above-mentioned formula, when Y and Y ' had on phenyl ring a plurality of (that is, q and q ' are 2～3 integer), Y and Y ' both can be the same or different in phenyl ring separately.In above-mentioned (1) formula, the total that the total of p and q is necessary for 3 (being p+q=3), p ' and q ' is necessary for 3 (being p '+q '=3).This is that not having c h bond in the polyamic acid is good event because if consider the low light loss of final product polyimide in the optical communication wavelength region may.
That is to say, as the ideal example of polyamic acid among the present invention for the polyamic acid that contains the repeating unit shown in useful aforementioned formula (3) and/or (3 '), better be formula (3) and/or in (3 '), the polyamic acid of X and the above-mentioned ideal divalent organic group of X ' expression, particularly contain the repeating unit that following arbitrary formula represents polyamic acid for well.
Below, the preparation method of polyamic acid of the present invention is described in detail in detail, though the end structure of polyamic acid of the present invention can be because of the difference of the addition (mol ratio) of diamine compound and tetracarboxylic acid derivatives and difference, but, can be any one in amine end structure or the acid derivative end structure.In addition, the polyamic acid among the present invention both can be made up of same repeating unit, also can be made up of different repeating units, if during the latter's situation, then its repeating unit can be block-wise also can be random shape.
Among the present invention, polyamic acid contains a chlorine atom at least, but the repeating unit [the divalent organic group of the perfluorination type that is all replaced by fluorine atom (C-F key) as: X and X ' expression hydrogen atom (C-H) key, p and p ' are 3, the repeating unit of formula (1)] that contains the perfluorination type is also passable.Like this, having the polyamic acid that part contains perfluorination type repeating unit multipolymer form, from solvability, thermotolerance and the anti-hygroscopic angle to organic solvent, is comparatively ideal structure among the present invention.At this moment, these repeating units (repeating unit of the repeating unit of perfluorination type and non-perfluorination type) both can be block-wise, also can be random shape.
Polyamic acid among the present invention can be by the incompatible preparation of well-known technology groups, and its preparation method has no particular limits.In general use in organic solvent, it is good making the method for tetracarboxylic acid, its acid anhydrides or the reactions such as hydrochloric acid salt, its carboxylate shown in diamine compound shown in the following formula (5) and the following formula (7).That is, second content of the present invention provides the preparation method of above-mentioned polyamic acid.This polyamic acid is by in organic solvent, make the method preparation of the diamine compound shown in the following formula (5) (in this specification sheets also single claim " diamine compound ") and tetracarboxylic acid, its acid anhydrides or the hydrochloric acid salt shown in the following formula (7) or its carboxylate (in this specification sheets, general designation is made " tetracarboxylic acid derivatives ") reaction.
H
2N-X’-NH
2 (5)
(in the formula, the organic group of X ' expression divalent.)
(in the formula, X represents the organic group of divalent; Y and Y ' represent chlorine, bromine or iodine atom respectively separately; The number of the fluorine atom (F in the formula (7)) that p and p ' engage on the corresponding phenyl ring of expression separately respectively, be 0～3 integer; Q and q ' are separately respectively 0～3 integer; P+q is 3, p '+q ' is 3.)
Because " X ' " in the above-mentioned formula (5), and above-mentioned formula (7) in " X ", " Y ", " Y ' ", " p ", " q ", " p ' " reach " q ' " the same with the definition in the above-mentioned formula (1), so, the explanation omission here.
Introduce second content of the present invention below, for example, in the above-mentioned formula (1), when X ' is a divalent group shown in the following formula, the preparation method of the polyamic acid of above-mentioned formula (1).
That is, in organic solvent, by making 1 shown in the following formula (6), 3-diamino benzene derivant (in this specification sheets, also being called " 1, the 3-diamino benzene derivant ") can make desired polyamic acid with the method for the tetracarboxylic acid derivatives reaction of above-mentioned formula (7).
Following embodiment is with the ideal example 1 among the present invention, the 3-diamino benzene derivant illustrates as raw material, and method of the present invention replaces 1 except suitably selecting diamine compound, beyond the 3-diamino benzene derivant, the same with following embodiment suitable.Because " Z " in the above-mentioned formula (6) ", " a " definition of reaching in the ideal example of " b " and " X ' " is the same, so omit its explanation here.
Among the present invention, if 1, the 3-diamino benzene derivant is shown in the above-mentioned formula (6), and reacts the structure that can make desired polyamic acid with the halo tetracarboxylic acid derivatives, then has no particular limits.Therefore, the present invention is from ideal polyamic acid structure, to use 1,3-diamino-2,4,5,6-four fluorobenzenes, 5-chloro-1,3-diamino-2,4,6-trifluoro-benzene, 2,4,5,6-tetrachloro-1,3-diaminobenzene, 4,5,6-three chloro-1,3-diamino-2-fluorobenzene, 5-bromo-1,3-diamino-2,4,6-trifluoro-benzene, 2,4,5,6-tetrabromo generation-1, the 3-diaminobenzene be good, to use 1,3-diamino-2,4,5,6-four fluorobenzenes and 5-chloro-1,3-diamino-2,4,6-trifluoro-benzene are special good.In addition, these 1, the 3-diamino benzene derivant both can use separately also can two or more mixtures state use.
Among the present invention, 1, the addition of 3-diamino benzene derivant, but so long as get final product, there is not other special restriction with the amount of halo tetracarboxylic acid derivatives highly effective reaction.Specifically, 1, the addition of 3-diamino benzene derivant, from stechiometry, can with mole such as halo tetracarboxylic acid derivatives, halo tetracarboxylic acid derivatives with respect to 1 mole, get 0.8～1.2 mole 1, the 3-diamino benzene derivant is good, gets 0.9～1.1 mole for better.At this moment, if 1, the addition of 3-diamino benzene derivant is not 0.8 mole, then the halo tetracarboxylic acid derivatives is just excessive, makes refining step become complicated.In addition, the polymerization degree is not variable sometimes big.On the contrary, if surpass 1.2 moles, then 1,3-diamino benzene derivant excess residual, it is complicated that refining step becomes, and in addition, the polymerization degree is also not variable big.
Among the present invention, the halo tetracarboxylic acid derivatives is the halo tetracarboxylic acid with above-mentioned formula (7) expression, its acid anhydrides or sour salt, or its carboxylate. specifically can enumerate as hexafluoro-3,3 ', 4,4 '-biphenyltetracarboxyacid acid, chlordene-3,3 ', 4,4 '-biphenyltetracarboxyacid acid, two (3,4-dicarboxyl trifluoro-benzene base) thioether, two (3,4-dicarboxyl trichloro-benzene base) thioether, 1, two (3,4-dicarboxyl trifluoro-benzene oxygen base) four fluorobenzenes of 4-, 1,4-two (3,4-dicarboxyl trichloro-benzene oxygen base) four fluorobenzenes, 1, two (3, the 4-dicarboxyl trifluoro-benzene oxygen base) tetrachlorobenzenes of 4-, 1,4-two (3,4-dicarboxyl trichloro-benzene oxygen base) tetrachlorobenzene, 3,6-two fluoro Pyromellitic Acids, 3,6-dichloro-Pyromellitic Acid, the halo tetracarboxylic acid of above-mentioned formulas (7) such as 3-chloro-6-fluorine Pyromellitic Acid; Corresponding dicarboxylic anhydride; Corresponding sour salt; Methyl esters, the carboxylate that ethyl ester etc. are corresponding etc. in them, hexafluoro-3,3 ', 4,4 '-biphenyltetracarboxyacid acid, 1,4-two (3,4-dicarboxyl trifluoro-benzene oxygen base) four fluorobenzenes, 1, two (3, the 4-dicarboxyl trifluoro-benzene oxygen base) tetrachlorobenzenes of 4-, and the dicarboxylic anhydride of their correspondences acid salt is for well, 1,4-two (3,4-dicarboxyl trifluoro-benzene oxygen base) four fluorobenzenes, 1, two (3, the 4-dicarboxyl trifluoro-benzene oxygen base) tetrachlorobenzenes of 4-, and their acid anhydrides and sour salt are for special good. these halo tetracarboxylic acid derivatives both can use separately also and can use by the mixture state more than 2 kinds.
The not special restriction of the halo tetracarboxylic acid of the above-mentioned formula of the usefulness of using among the present invention (7) expression, the method that can adopt the spy to open to put down in writing in the flat 11-147955 communique etc., the method by well-known technology or its combination prepares.
The organic solvent that uses among the present invention, so long as can make 1,3-diamino benzene derivant and halo tetracarboxylic acid derivatives react effectively, and, are inactive words to these raw materials, just have no particular limits.Can enumerate as N-N-methyl-2-2-pyrrolidone N-, N,N-dimethylacetamide, N, the polar organic solvent of dinethylformamide, dimethyl sulfoxide (DMSO), tetramethylene sulfone, methyl iso-butyl ketone (MIBK), acetonitrile, benzonitrile etc.These organic solvents both can use separately also and can use with the state of mixture more than 2 kinds.In addition, the amount of organic solvent, so long as make 1, the amount that 3-diamino benzene derivant and halo tetracarboxylic acid derivatives can react effectively, then have no particular limits, so that in the organic solvent 1, the concentration of 3-diamino benzene derivant is 1～80% (quality) for well, and 5～50% (quality) are better.
Among the present invention, 1, the reaction conditions of 3-diamino benzene derivant and halo tetracarboxylic acid derivatives so long as make the condition that they can fully react, then has no particular limits.For example: the temperature of reaction ideal be 0～100 ℃, better be 10～50 ℃.In addition, the reaction times is generally 1～240 hour, ideal is 1～72 hour, and better is 2～48 hours.Also have, reaction can be carried out under any pressure of pressurization, normal pressure or decompression, but it is desirable to carry out under normal pressure.Have again, if consider situations such as the reaction efficiency and the polymerization degree, then 1, the exsiccant rare gas element mist that is reflected at of 3-diamino benzene derivant and halo tetracarboxylic acid derivatives carries out to good in enclosing, at this moment, the reaction mist enclose in the gas relative humidity with 10% below for well, with below 1% serve as better, rare gas element can use nitrogen, helium and argon gas etc.
Among the present invention,, just can make novel polyimide by with polyamic acid heating cyclisation of the present invention.That is, the 3rd content provided by the invention is polyimide, and it contains chlorine atom and fluorine atom, and is formed by the repeating unit shown in the following formula (2).
(here, X and X ' represent the organic group of divalent respectively separately; Y and Y ' represent chlorine, bromine or iodine atom respectively separately; P and p ' represent to be connected on the number of the fluorine atom (F in the formula (2)) on the corresponding phenyl ring respectively separately, are 0～3 integer; Q and q ' are separately respectively 0～3 integer; P+q is 3, p '+q ' is 3.)
Also have, have the aforementioned polyimide of the repeating unit that following formula (4) and/or (4 ') formula represent.
(in the formula, X and X ' represent the organic group of divalent respectively separately.)
That form by this carbon-fluorine bond (C-F key) and/or carbon-chlorine key (C-Cl key) and polyimide that form by specific repeating unit, its thermotolerance, resistance to chemical reagents, water-repellancy, dielectric characteristics, electrical property and optical characteristics excellence are so mix the various optical materials such as photoelectricity guided wave road that carry real fabrication line plate on useful with interlayer dielectric, semiconductor element with packaged material, optical element, optoelectronic integrated circuit (OEIC), photoelectron at tellite, LSI.
Among the present invention, polyimide must contain chlorine atom and fluorine atom.At this moment, the not special restriction of chlorine atom content in the polyimide, the complexity and the desired characteristic (as: solvability, thermotolerance, resistance to chemical reagents, water-repellancy, dielectric characteristics, electrical property and optical property) of consideration preparation can be done suitable selection, the total mass of relative polyimide, it is good containing the following chlorine atom of 60% (quality).If the chlorine atom content surpasses 60% (quality), then specific inductivity and specific refractory power will uprise.In addition, be accompanied by the increase of chlorine atom content, the content of fluorine atom descends, and thermotolerance also can descend.Also have, the polyimide among the present invention must contain the chlorine atom, so the lower limit of chlorine atom content can not be 0% (quality) in the polyimide.If consider specific inductivity, specific refractory power, thermotolerance and the anti-water absorbability etc. of polyimide, for the polyimide total mass, the chlorine atom content that exists in the polyimide is preferably 4～55% (quality), particularly preferably 4～23% (quality).
In addition, among the present invention, polyimide must contain the repeating unit shown in the useful aforementioned formula (2).Owing to there is this specific repeating unit to form, so can reach the desired specific refractory power refractive indices n of original perfluorination polyimide (that is, with respect to).Also have, if consider in the near infrared light zone, particularly in the light transmission loss of optical communication wavelength region may (1.0～1.7 μ m), in the polyimide of the present invention not exist C-H (c h bond) for well.Polyimide with this structure, thermotolerance, resistance to chemical reagents, water-repellancy, dielectric characteristics, electrical property and optical characteristics excellence.Have, it is identical with the definition in the above-mentioned formula (1) that " X " in the above-mentioned formula (2), " X ' ", " Y ", " Y ' ", " p ", " p ' ", " q " reach " q ' ", so omit its explanation here again.
Can enumerate the polyimide that has with the repeating unit of aforementioned formula (4) and/or (4 ') expression as polyimide ideal example among the present invention.Above-mentioned formula (4) and/or in (4 '), it is identical with the definition in the above-mentioned formula (1) that " X " reaches " X ' ".That is, the X in above-mentioned (4) is with concatenator or the represented divalent group of following formula as the example of ideal divalent organic group.
In them, X is better for the divalent group of representing with concatenator or following formula.
Specifically, X serves as better for the divalent organic group of representing with any one formula in concatenator or the following formula.
Good again is the divalent organic group of representing with following formula,
Good especially is the divalent organic group of representing with following formula.
In addition, in the above-mentioned formula (4), X ' is also the same with the definition in the above-mentioned formula (1), and the divalent organic group that following formula is represented is for well.
Specifically, divalent group the best of representing with following formula.
Polyimide among the present invention with the polyimide of the repeating unit that contains following any one formula and represent for good especially.
Polyimide among the present invention is as described in detail below, prepares by polyamic acid is heated closed loop, and for this reason, the end structure of polyimide of the present invention is according to the difference of used polyamic acid structure and difference can be amine end or acid derivative end.In addition, polyimide of the present invention both can be made up of identical repeating unit, also can form by different repeating units, during the latter's situation, repeating unit both can be block-wise, also can be random shape.
Among the present invention, at least to there be a chlorine atom to exist on the polyimide, but, if it is also passable to contain the repeating unit [perfluor die divalent organic group, p and the p ' that is replaced by fluorine atom (C-F key) entirely as: X and X ' expression hydrogen atom (c h bond) is 3, the repeating unit of formula (2)] of perfluor die.Like this, consider that among the present invention, the polyimide of multipolymer state that contains perfluor die repeating unit with part is for well from solvability, thermotolerance and anti-water absorbability to organic solvent.At this moment, these repeating units (repeating unit of the repeating unit of perfluor die and non-perfluor die) both can be block-wise, also can be random shape.
Polyimide among the present invention can be by the incompatible preparation of well-known technology groups, and in general the not special restriction of its preparation method, can be prepared by polyamic acid heating cyclisation of the present invention.That is, the 4th content of the present invention provides the preparation method of the polyimide of the 3rd content, and polyimide is to make by the heating cyclization with first content polyamic acid of the present invention.
Among the present invention, the heat treated of polyamic acid, both can in solvent, carry out, can in solvent, not carry out yet, if consideration reaction efficiency, in solvent, to carry out to good. this moment both can be by the preparation section of above-mentioned polyamic acid, with 1, the polyamic acid solution that 3-diamino benzene derivant and the reaction of halo tetracarboxylic acid derivatives make carries out heat treated, also polyamic acid can be made solid, after the separation, be dissolved in again and carry out heat treated in the solvent. in method described later, can enumerate as the N-N-methyl-2-2-pyrrolidone N-as spendable other solvent, N, the N-N,N-DIMETHYLACETAMIDE, vinyl cyanide, benzonitrile, oil of mirbane, Nitromethane 99Min., dimethyl sulfoxide (DMSO), acetone, butanone, isobutyl ketone and methyl alcohol isopolarity solvent and toluene, non-polar solvents such as dimethylbenzene etc. ideal can use N-N-methyl-2-2-pyrrolidone N-and N in them, the N-N,N-DIMETHYLACETAMIDE. in addition, these solvents are individually or use with the state of the mixture more than 2 kinds can.
In the 4th content of the present invention, the not special restriction of the heat treated condition of polyamic acid, so long as can make the polyamic acid among the present invention that cyclization takes place effectively, the words of condition that make desired polyimide are just passable.Specifically, heat treated usually in air, it is desirable in atmosphere of inert gases such as nitrogen, helium, argon gas, carried out in about about 70～350 ℃, 2～5 hours, but the heat treated among the present invention both proceed step by step, also can carry out continuously.According to the ideal implementation condition as can be known, polyamic acid is preferably in 70 ℃ and carries out 2 hours, 160 ℃ and carry out 1 hour, 250 ℃ and carry out 30 minutes, 350 ℃ substep heat treated of carrying out 1 hour.
Polyimide of the present invention, resistance to chemical reagents, water-repellancy, dielectric characteristics, electrical property and optical characteristics are very excellent.In addition, polyimide of the present invention, particularly in molecular chain, do not have in the C-H (c h bond), in the absorption spectrum of near infrared region, do not exist by the higher harmonic of the flexible signal of the higher harmonic of the stretching vibration of c h bond or c h bond and the peak that the molecular change angular oscillation produces, so, in full optical communication wavelength region may (1.0～1.7 μ m), can reach the requirement of low light loss, for this reason, at tellite, the LSI interlayer dielectric, the semiconductor element packaged material, optical element, optoelectronic integrated circuit (OEIC), photoelectron mixes on the various optical materials such as photoelectricity guided wave road that carry in the real fabrication line plate useful.
The 5th content of the present invention provides the optical material that contains polyimide of the present invention.
Optical material of the present invention must contain the polyimide of the 3rd invention, in addition, for the desired characteristic of further raising, as: characteristics such as transmitance, thermotolerance, resistance to chemical reagents, water-repellancy, dielectric characteristics, electrical property and optical characteristics, also can contain other component.Here, can enumerate as: polymeric amide, polyamidoimide, Resins, epoxy, phenolic resin, melamine resin, the plain resin of urea, diallyl phthalate ester resin, unsaturated polyester resin, urethane resin addition polyimide resin, silicone resin, poly-to vinyl benzene phenol resins, polyphenylene sulfide, polyethers, polyether-ether-ketone, polypropylene and poly methylene imine as other component; Polytetrafluoroethylene (PTFE), tetrafluoraoethylene-hexafluoropropylene copolymer (FEP), ethylene-tetrafluoroethylene copolymer (ETFE), tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA) and polychlorotrifluoroethylene fluoro-resin such as (PCTFE); The powder of lime carbonate, silicon-dioxide, aluminum oxide, titanium dioxide, aluminium hydroxide, pure aluminium silicate, zirconium silicate, zircon, glass, talcum, mica, graphite, aluminium, copper and iron etc. and the inorganic filling material of staple fibre shape; Coupling agents such as the releasing agent of lipid acid and wax class etc., epoxy silane, vinyl silanes, borane compounds and alkyl titanate ester compound; Various additives such as the fire retardant of the compound of antimony and phosphorus and halogen-containing compound etc. and dispersion agent and solvent.
The application method of optical material of the present invention except the polyimide that uses the 3rd invention, can with the same use originally.For example: when being used for optical material of the present invention on the tellite, can be on substrate, polyamic acid solution is coated with well-known methods such as method, aniline printing and dip-coating to be coated with casting method, method of spin coating, rolling method, spraying method, rod, then in atmosphere of inert gases such as nitrogen, helium, argon gas, under 70～350 ℃, heated 2～5 hours, and can on substrate, form polyimide film.In aforesaid method, polyamic acid solution both can be with in its preparation section, and by 1, the solution state that 3-diamino benzene derivant and the reaction of halo tetracarboxylic acid derivatives make directly uses, and after also it can being separated, is dissolved in other solvent and uses.In method described later, other solvent of available, can enumerate as N-methyl-2-tetramethyleneimine, N,N-dimethylacetamide, acetonitrile, benzonitrile, oil of mirbane, Nitromethane 99Min., dimethyl sulfoxide (DMSO), acetone, butanone, isobutyl ketone and non-polar solvents such as methyl alcohol isopolarity solvent and toluene, dimethylbenzene etc.Wherein, ideal can use N-N-methyl-2-2-pyrrolidone N-and N,N-dimethylacetamide.These solvents both can use separately, also can use by the mixture state more than 2 kinds.Also have, in the aforesaid method, the thickness of film etc. can be done suitably to select according to the needs that use, and can use known thickness equally.
The 6th content of the present invention is the polyamic acid that has with the repeating unit of following formula (i) expression.
(here, X represents the organic group of 4 valencys; Y represents chlorine, bromine or iodine atom; P represent to be connected on the fluorine atom (F in the formula (i)) on the phenyl ring number, be 0～3 integer; Q is 1～4 integer; P+q is 4.)
In addition, be the aforementioned polyamic acid that contains the repeating unit that useful following formula V represents.
(here, X represents the organic group of 4 valencys.)
The present invention relates to the polyamic acid shown in the above-mentioned formula (i).Polyamic acid with this structure, very useful as the raw material of the polyimide of thermotolerance, resistance to chemical reagents, water-repellancy, dielectric characteristics, electrical property and optical characteristics excellence.
In the above-mentioned formula (i), X represents the organic group of 4 valencys.Here as the organic group of 4 valencys, can enumerate aliphatics organic group as 4 valencys such as cycloalkyl, chain-like alkyl, alkylene, ethylene glycol; Aromatic series organic group from 4 valencys of benzene xenyl, biphenyl ether, diphenyl benzene, two phenoxy group benzene etc.; And their halogen-containing aliphatics and aromatic series organic group etc.Among them, be good as " X " in above-mentioned (i) with the aromatic series organic group of 4 valencys, best halogen-containing aromatic series organic group with 4 valencys.In the middle of them,, can enumerate 4 valency groups shown in the following formula as the example of the special ideal 4 valency organic groups of above-mentioned " X ".
In expression above-mentioned formula (i) in the formula of the ideal 4 valency organic groups of X, R
1And R
2Represent halogen atom, be fluorine, chlorine, bromine or iodine atom, it is desirable to represent fluorine atom or chlorine atom, it would be desirable the expression fluorine atom.Here, R
1And R
2Both can be identical, also can be different, in addition, R
1And R
2Respectively in corresponding phenyl ring, when having (that is, m and m ' they are 2 or 3) with plural number, R
1And R
2In each phenyl ring, both can be the same or different respectively.Have, m and m ' represent to be connected on R on the corresponding phenyl ring respectively again
1And R
2Number, be if that 1～3 integer is considered thermotolerance, resistance to chemical reagents, water-repellancy and low-dielectric because c h bond does not exist for, so m and m ' are preferably 3. here, m and m ' both can be identical numbers, also can be different numbers.
Also have, in the above-mentioned formula, Z is the group of the divalent represented by connector or following formula.
In them, Z is connector or the divalent group represented by following formula for well.
In the formula of above-mentioned expression " Z ", Y ' and Y " the expression halogen atom, promptly represent fluorine, chlorine, bromine or iodine atom, it is desirable to represent the fluorine or chlorine atom, it would be desirable the expression fluorine atom.In the formula of expression above-mentioned " Z ", as Y ' and Y " when existing simultaneously, Y ' and Y " both can be identical, also can be different.In addition, Y ' and Y " respectively in corresponding phenyl ring, when having (that is, r and r ' they are 2～4 integer), Y ' and Y with plural number " respectively in each phenyl ring, both can be identical, also can be different.Have, r and r ' represent to be connected on Y ' and the Y on the corresponding phenyl ring respectively again " number, be 1～4 integer, be preferably 2～4 integer.If consider thermotolerance, resistance to chemical reagents, water-repellancy and low-dielectric, owing to c h bond does not exist for, so r and r ' are preferably 4.Here, r and r ' both can be identical, also can be different.
In the above-mentioned formula (i), Y represents chlorine, bromine or iodine atom, it is desirable to represent the chlorine or bromine atom, it would be desirable expression chlorine atom.In addition, in the above-mentioned formula (i), p represent to be connected on the fluorine atom on the phenyl ring number, be 0～3 integer, ideal be 1～3 integer, better be 3.Have again, in above-mentioned formula (i), q represent to be connected on the Y on the phenyl ring number, be 1～4 integer, ideal be 1～3 integer, better be 1.Also have, in the above-mentioned formula, when there be (that is, q is 2～4 integer) in Y with plural number in phenyl ring, Y respectively both can be identical in phenyl ring, also can be different.In the above-mentioned formula (i), the total of p and q is necessary for 4 (being p+q=4).If consider thermotolerance, resistance to chemical reagents, water-repellancy and the low-dielectric of final product polyimide, then with in the polyamic acid, c h bond does not exist for.
That is,, can enumerate the polyamic acid that contains with the repeating unit shown in the aforementioned formula V as the ideal example of polyamic acid of the present invention.Better enumerate the polyamic acid that contains the repeating unit that useful following formula represents, in them, serve as special good with the polyamic acid that contains useful following (V-1)～(V-3) repeating unit shown in the formula.
The preparation method of polyamic acid of the present invention is described in detail in detail below, hence one can see that, the end of polyamic acid of the present invention is with 1, the addition (mol ratio) of 3-diamino benzene derivant and haloization four carboxylate derivatives different and different, but, be any one in amido end or the acid derivative end. in addition, polyamic acid of the present invention both can be made up of identical repeating unit, also can form by different repeating units, during the latter's situation, its repeating unit both can be a block-wise, also can be random shape.
The repeating unit of the aforementioned formula that polyamic acid of the present invention contains repeating unit shown in the formula (i) and phenyl ring perfluoro shown in (ii) is also passable.
Having the polyamic acid of this multipolymer form that is formed by formula (i) and formula repeating unit (ii), from solvability, thermotolerance and the anti-hygroscopic angle to organic solvent, is ideal polyamic acid among the present invention.Here, formula (i) and repeating unit (ii) both can be block-wise, also can be random shapes.
Polyamic acid of the present invention can be with the incompatible preparation of well-known technology groups, its preparation method has no particular limits, in general, employing is in organic solvent, (1 vii), the 3-diamino benzene derivant is with (method that halo tetracarboxylic acid viii) and acid anhydrides thereof or oxychlorination thing or its carboxylate react is for well with following formula with following formula.Promptly, the 7th content of the present invention is in organic solvent, will be with following formula (1 vii), the 3-diamino benzene derivant is (in this specification sheets, also claim " 1, the 3-diamino benzene derivant ") with the following formula (preparation method of the aforementioned polyamic acid of (general designation " halo tetracarboxylic acid derivatives " in this specification sheets) reaction of halo tetracarboxylic acid viii) and acid anhydrides thereof or oxychlorination thing or its carboxylate and formation.
(in the formula, Y represents chlorine, bromine or iodine atom; It (number of formula (F vii)), is 0～3 integer that p represents to be connected on fluorine atom on the phenyl ring; Q is that 1～4 integer, p+q are 4.)
(in the formula, X represents the organic group of 4 valencys.)
(" Y " vii), " p " reach " q " and above-mentioned formula, and (" X " viii) is the same with the definition in the above-mentioned formula (i) for above-mentioned formula.
In the 7th content of the present invention, 1, the 3-diamino benzene derivant is if having above-mentioned formula (vii), and with halo tetracarboxylic acid derivatives reaction, can make the structure of desired polyamic acid, then have no particular limits. therefore consider from the structure of ideal polyamic acid of the present invention, with 5-chloro-1,3-diamino-2,4, the 6-trifluoro-benzene, 2,4,5,6-tetrachloro-1, the 3-diaminobenzene, 4,5,6-three chloro-1,3-diamino-2-fluorobenzene, 5-bromo-1,3-diamino-2,4, the 6-trifluoro-benzene, 2,4,5,6-tetrabromo-1, the 3-diaminobenzene is for well, wherein with 5-chloro-1,3-diamino-2,4, the 6-trifluoro-benzene is special good. also has, these 1, the 3-diamino benzene derivant both can use separately, mixture state that also can be more than 2 kinds uses.
In the 7th content of the present invention, 1, the addition of 3-diamino benzene derivant is if the amount that can react effectively with the halo tetracarboxylic acid derivatives then has no particular limits.Specifically, 1, the addition of 3-diamino benzene derivant, saying on the stechiometry, should with mole such as halo tetracarboxylic acid derivatives, for the halo tetracarboxylic acid derivatives with respect to 1 mole, to add 0.8～1.2 mole, add 0.9～1.1 mole for better for good.Here, if 1,0.8 mole of the addition deficiency of 3-diamino benzene derivant, then the halo tetracarboxylic acid derivatives just has excess residual, make refining step become complicated, the occasion that the polymerization degree can be not big when having, on the contrary, if above 1.2 moles, then 1, the 3-diamino benzene derivant will excess residual, makes refining step become complicated, and the polymerization degree can be not big yet sometimes.
In the 7th content of the present invention, the halo tetracarboxylic acid derivatives is with above-mentioned formula (the halo tetracarboxylic acid viii), its acid anhydrides or sour salt or its ester cpds.Specifically, can enumerate as hexafluoro--3,3 ', 4,4 '-biphenyltetracarboxyacid acid, hexachloro--3,3 ', 4,4 '-biphenyltetracarboxyacid acid, hexafluoro--3,3 ', 4,4 '-biphenyl ether tetracarboxylic acid, hexachloro--3,3 ', 4,4 '-biphenyl ether tetracarboxylic acid, two (3,4-dicarboxyl trifluoro-benzene) thioether, two (3,4-dicarboxyl trichloro-benzene) thioether, 1, two (3,4-dicarboxyl trifluoro-benzene oxygen base) four fluorobenzenes of 4-, 1,4-two (3,4-dicarboxyl trichloro-benzene oxygen base) four fluorobenzenes, 1, two (3, the 4-dicarboxyl trifluoro-benzene oxygen base) tetrachlorobenzenes of 4-, 1,4-two (3,4-dicarboxyl trichloro-benzene oxygen base) tetrachlorobenzene, 3,6-two fluoro Pyromellitic Acids, 3,6-dichloro-Pyromellitic Acid, above-mentioned formula (the halo tetracarboxylic acid viii) of 3-chloro-6-fluorine Pyromellitic Acid etc.; Corresponding acid anhydrides; The carboxylate that corresponding oxychlorination thing, methyl esters, ethyl ester etc. are corresponding etc.In them, with hexafluoro--3,3 ', 4,4 '-biphenyltetracarboxyacid acid, hexafluoro--3,3 ', 4,4 '-biphenyl ether tetracarboxylic acid, 1,4-two (3,4-dicarboxyl trifluoro-benzene oxygen base) four fluorobenzenes, 1, the acid dianhydride of two (3, the 4-dicarboxyl trifluoro-benzene oxygen base) tetrachlorobenzenes of 4-and their correspondences and oxychlorination thing for well, with hexafluoro--3,3 ', 4,4 '-biphenyl ether tetracarboxylic acid, 1, two (3,4-dicarboxyl trifluoro-benzene oxygen base) four fluorobenzenes, 1 of 4-, two (3,4-dicarboxyl trifluoro-benzene oxygen base) tetrachlorobenzenes of 4-and their acid dianhydride are special good.Also have, these halo tetracarboxylic acid derivatives both can use separately, the state of mixture that also can be more than 2 kinds uses.
Use in the 7th of the present invention (the halo tetracarboxylic acid viii) has no particular limits, and available spy opens well-known technology such as the method put down in writing in the flat 11-147955 communique or its combination technique prepares by above-mentioned formula.
The organic solvent that uses in the 7th of the present invention, if can make 1,3-diamino benzene derivant and halo tetracarboxylic acid derivatives react effectively, and these raw materials are the inert words, and be then without particular limitation.Can enumerate as N-N-methyl-2-2-pyrrolidone N-, N,N-dimethylacetamide, N, the polar organic solvent of dinethylformamide, dimethyl sulfoxide (DMSO), tetramethylene sulfone, methyl iso-butyl ketone (MIBK), acetonitrile and benzonitrile etc.These organic solvents both can use separately, and the state of mixture that also can be more than 2 kinds uses.In addition, the amount of organic solvent, so long as can make 1, the words of the amount that 3-diamino benzene derivant and halo tetracarboxylic acid derivatives react effectively, then without particular limitation, in the organic solvent, 1, the concentration of 3-diamino benzene derivant is generally 1～80% (quality), is preferably 5～50% (quality).
In the 7th of the present invention, 1, the condition of 3-diamino benzene derivant and the reaction of halo tetracarboxylic acid derivatives, so long as the condition that their sufficient reacting ground is carried out, then without particular limitation. for example: temperature of reaction with 0～100 ℃ for well, with 10～50 ℃ serves as better. in addition, reaction times was generally 1～240 hour, ideal is 1～72 hour, better is 2～48 hours. also have, be reflected at pressurization, carrying out under any pressure in normal pressure or the reduced pressure can, it is desirable under normal pressure, carry out. have again, if consider 1, the reaction of 3-diamino benzene derivant and halo tetracarboxylic acid derivatives, reaction efficiency, the words of problems such as water-absorbent, then be reflected at and carry out in the exsiccant atmosphere of inert gases to good, at this moment, relative humidity in the reaction atmosphere gas, ideal is below 10%, better is below 1%. can use nitrogen as rare gas element, helium, argon gas etc.
Among the present invention, will can make novel polyimide through the heating cyclization according to the 6th method or the 7th polyamic acid that method makes.
That is, the 8th content of the present invention is the polyimide that contains the repeating unit that useful following formula (iii) represents.
(here, X represents the organic group of 4 valencys; Y represents chlorine, bromine or iodine atom; P represent to be connected on fluorine atom on the phenyl ring (formula (iii) in F) number, be 0～3 integer; Q is that 1～4 integer, p+q are 4.)
Also have, contain useful following formula (the vi) aforementioned polyimide of Biao Shi repeating unit.
(in the formula, X represents the organic group of 4 valencys.)
The 9th content of the present invention provides the preparation method of polyimide in the 8th content.This polyimide is to form through the heating cyclisation by the 6th method or the 7th polyamic acid that method makes.Polyimide with this structure, its thermotolerance, resistance to chemical reagents, water-repellancy, dielectric characteristics, electrical property and optical characteristics excellence.Also have, it is the same with the definition in the above-mentioned formula (i) that " X ", " Y ", " p " of above-mentioned formula in (iii) reaches " q ".
In the 8th of the present invention, polyimide is so long as the structure that above-mentioned formula is (iii) represented is then without particular limitation, if consider thermotolerance, resistance to chemical reagents, water-repellancy and low-dielectric, then to have the structure of not being with c h bond for well.
That is,, can enumerate and have with the aforementioned formula (polyimide of the repeating unit vi) as the ideal example of the polyimide of the 8th invention.(vi), " X " is the same with the definition in above-mentioned first (above-mentioned formula (i)) for above-mentioned formula.That is, above-mentioned formula (the aromatic series organic group of " X " vi) expression 4 valencys, better be the halogen-containing aromatic series organic group of expression 4 valencys.In them, (X vi), the example of special ideal 4 valency organic groups can be enumerated 4 valency groups shown in the following formula as above-mentioned formula.
The above-mentioned formula of expression (vi) in the formula of the ideal 4 valency organic groups of X, Z, R
1, R
2, the definition in m and m ' and the above-mentioned formula of expression (i) in the formula of the ideal 4 valency organic groups of X is the same, so save explanation.
Better polyimide can be enumerated the polyimide that has with the repeat unit structure shown in the following formula among the present invention,
In them, the polyimide with repeat unit structure of representing with above-mentioned (a)～(c) is for special good.
Polyimide among the present invention, with polyamic acid of the present invention through the end of heating cyclisation preparation, polyimide according to the difference of used polyamic acid structure and difference, can be amine end or acid derivative end. in addition, polyimide among the present invention both can be made up of identical repeating unit, also can be formed by different repeating units. during the latter's situation, its repeating unit both can be a block-wise, also can be random shape.
Polyimide in the 8th invention beyond with the repeating unit of formula shown in (iii), contains phenyl ring entirely by fluoric, also passable with the repeating unit of following formula shown in (iv).
(in the formula, X represents the organic group of 4 valencys.)
This have a polyimide that is (iii) reached the formed multipolymer form of formula repeating unit (iv) by formula, from solvability, thermotolerance and the anti-hygroscopic angle to organic solvent, is ideal in the present invention.At this moment, formula (iii) reach formula repeating unit (iv) both can be block-wise, also can be random shape.
The 8th polyimide is by making polyamic acid heating cyclisation of the present invention among the present invention, in the 9th of the present invention, the heat treated of polyamic acid both can be carried out in solvent, also can under the non-existent situation of solvent, carry out, if consider reaction efficiency etc., then in solvent, carry out to good.At this moment, polyamic acid both can with 1, carry out heat treated under the solution state that 3-diamino benzene derivant and the reaction of halo tetracarboxylic acid derivatives obtain by above-mentioned preparation section, also polyamic acid can be made solids constituent from after, be dissolved in again and carry out heat treated in the solvent.In the latter's method, as spendable other solvent, can enumerate as N-N-methyl-2-2-pyrrolidone N-, N,N-dimethylacetamide, acetonitrile, benzonitrile, oil of mirbane, Nitromethane 99Min., dimethyl sulfoxide (DMSO), acetone, butanone, isobutyl ketone and methyl alcohol isopolarity solvent and non-polar solvents such as toluene, dimethylbenzene.Ideal can use N-N-methyl-2-2-pyrrolidone N-and N,N-dimethylacetamide in them.In addition, these solvents both can use separately, also can use under the state of the mixture more than 2 kinds.
In the 9th of the present invention, the condition of heat treated and without particular limitation, so long as can make polyamic acid of the present invention that cyclization takes place effectively, the words of condition that make desired polyimide are just passable.Specifically, heat treated is carried out in air usually, be it is desirable to carry out in the atmosphere of rare gas elementes such as nitrogen, helium, argon gas.Temperature is about 70～350 ℃, the time is 2～5 hours, and heat treated of the present invention both sectional is carried out, also can be carried out continuously.Polyamic acid was at 70 ℃, 2 hours; 160 ℃, 1 hour; Carrying out zone heating under the condition of 250C, 30 minutes and 350 ℃, 1 hour and handle, is that ideal is implemented state.
Among the present invention, owing to do not have C-H (c h bond) in the polyimide molecule, so, in the absorption spectrum of near infrared region, there is not the peak that produces in conjunction with vibration by the higher harmonics of the flexible signal of the higher harmonics of the stretching vibration of c h bond or c h bond and angle vibration, for this reason, can in the scope of optical communication wavelength (1.0～1.7 μ m), reach the requirement of low light loss.Therefore, polyimide among the present invention can satisfy high optical transmittance and thermotolerance in the communication wavelength scope simultaneously, in addition, resistance to chemical reagents, water-repellancy, dielectricity, electrical property and optical property are also excellent, so, mix on the various optical materials such as photoelectricity guided wave road that carry real fabrication line plate useful with interlayer dielectric, semiconductor element with packaged material, optical element, optoelectronic integrated circuit (OEIC), photoelectron at printed circuit substrate, LSI.
Therefore, the of the present invention ten content is that the optical material that contains the 8th polyimide in the invention can be provided.
Optical material in the of the present invention ten must contain the 8th polyimide in the invention, in addition, with further raising desired characteristic as transmitance, thermotolerance, resistance to chemical reagents, water-repellancy, dielectric characteristics, performance such as electrical property and optical characteristics is a purpose, also can contain other component. here, can enumerate as polymeric amide as other component, polyamidoimide, Resins, epoxy, phenolic resin, melamine resin, the plain resin of urea, Phthalic acid, diallyl ester, unsaturated polyester resin, urethane resin, the addition polyimide resin, silicone resin, poly-to the vinyl benzene phenol resins, polyphenylene sulfide, polyethers, polyether-ether-ketone, polypropylene and poly methylene imine; Polytetrafluoroethylene (PTFE), tetrafluoraoethylene-hexafluoropropylene copolymer (FEP), ethylene-tetrafluoroethylene copolymer (ETFE), tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA) and polychlorotrifluoroethylene fluoro-resin such as (PCTFE); The powder of lime carbonate, silicon-dioxide, aluminum oxide, titanium oxide, aluminium hydroxide, pure aluminium silicate, zirconium silicate, zircon, glass, talcum, mica, graphite, aluminium, copper and iron etc. and the mineral filler of staple fibre shape; The releasing agent of lipid acid and wax class etc.; The coupling agent of epoxy silane, vinyl silanes, borane compounds and alkyl titanate ester compound etc.; The compound of antimony and phosphorus and contain the fire retardant of the compound etc. of halogen; And the various additives of dispersion agent and solvent etc.
Optical material in the of the present invention ten, suitable method are except using the 8th polyimide in the invention, can with the same use originally.For example: when the optical material in the tenth invention is used for tellite, earlier on substrate, be coated with well-known methods such as method, flexographic printing method and dip coating with casting method, method of spin coating, rolling method, spraying method, rod, polyamic acid solution is coated with, then, in the atmosphere of rare gas elementes such as nitrogen, helium, argon gas, under 70～350 ℃ temperature, heated 2～5 hours, on substrate, can form polyimide film.In aforesaid method, polyamic acid solution both can method with above-mentioned the 7th invention in, by 1, the solution state that 3-diamino benzene derivant and the reaction of halo tetracarboxylic acid derivatives make directly uses, after also the polyamic acid that makes thus can being separated, be dissolved in other solvent and use.In the latter's method, as other solvent of available, can enumerate as N-N-methyl-2-2-pyrrolidone N-, N,N-dimethylacetamide, acetonitrile, benzonitrile, oil of mirbane, Nitromethane 99Min., dimethyl sulfoxide (DMSO), acetone, butanone, isobutyl ketone and methyl alcohol isopolarity solvent and non-polar solvents such as toluene, dimethylbenzene.In them, ideal can be used N-N-methyl-2-2-pyrrolidone N-and N,N-dimethylacetamide.In addition, these solvents can use separately or use with the mixture state more than 2 kinds.Also have, in the aforesaid method, the thickness of film etc. can suitably be selected according to the difference of purposes, can adopt thickness commonly used.
Embodiment
Below, introduce the present invention particularly by embodiment.
In the there-necked flask of 50ml, add 1.88g (10 mmole) 1,3-diamino-2,4,5, shown in 6-four fluorobenzenes, the following formula of 1.21g (2 mmole) 4,4 '-[(2,3,5,6-tetrafluoro-1, the 4-penylene) two (oxygen bases)] two (3,5,6-trifluoro-phthalic acid acid anhydride)
4,4 ' shown in (5.41g 8 mmole) following formula-[2,3,5,6-tetrachloro-1,4-penylene) two (oxygen bases)] two (3,5,6-trifluoro-phthalic acid acid anhydride) and 11.5g N,N-dimethylacetamide.
With this mixing solutions, in nitrogen atmosphere, under the room temperature, stirred 2 days, make polyamic acid solution.
The polyamic acid that makes is like this analyzed with infrared spectra, can be obtained result as shown in Figure 1.
Reference example 1
Except with 6.05g (10 mmole) 4,4 '-[(2,3,5,6-tetrafluoro-1,4-penylene) two (oxygen bases)] two (3,5,6-trifluoro-phthalic acid acid anhydride) as beyond the acid anhydrides, the operation that other all repeats record among the embodiment 1 makes the polyamic acid solution of reference.
Embodiment 2
The polyamic acid solution that will in embodiment 1 and reference example 1, make and with reference to polyamic acid solution respectively on the silicon substrate of 4 inches sizes of diameter, be coated with method of spin coating, make and form the thick rete of 8 μ m, in nitrogen atmosphere, under the temperature of 70 ℃, 160 ℃, 250 ℃ and 350 ℃, heated respectively 2 hours, 1 hour, 30 minutes and 1 hour, on silicon substrate, form polyimide film and with reference to polyimide film.
The polyimide film that makes is like this analyzed with infrared spectra, obtained result shown in Figure 2.
In addition, measure the photoabsorption of polyimide film in optical communication wavelength region (0.8～1.7 μ m) that makes like this, as can be known, in this wavelength region may, the light transmission loss is few.
Be determined at 633 and the specific refractory power at 1300nm place with the polyimide film that makes like this and with reference to polyimide film, obtain the result shown in the following table 1.
Table 1
As shown in table 1, the refringence of polyimide film of the present invention has surpassed 1.0%, uses so can think that it can satisfy fully on the various optical materials with photoelectricity guided wave Lu Weizhu.
Embodiment 3
In the there-necked flask of 50ml, add 1.072g (5.5 mmole) 5-chloro-1,3-diamino-2,4, shown in 6-trifluoro-benzene, the following formula of 3.177g (5.5 mmole) 4,4 '-[(2,3,5,6-tetrafluoro-1, the 4-penylene) two (oxygen bases)] two (3,5,6-three fluoro Tetra hydro Phthalic anhydrides) and the 5.7g N,N-dimethylacetamide.
This mixed solution in nitrogen atmosphere, in stirring at room 2 days, is made polyamic acid solution.
Polyamic acid Infrared spectroscopy with making like this obtains result shown in Figure 3.
Reference example 2
Except 1 of usefulness 0.99g (5.5 mmole), 3-diamino-2,4,5,6-four fluorobenzenes replace the 5-chloro-1 among the embodiment 3, and 3-diamino-2,4 beyond the 6-trifluoro-benzene, repeats the operation of record among the embodiment 3, makes with reference to polyamic acid solution.
Embodiment 4
With the polyamic acid solution that makes in embodiment 3 and the reference example 2 and with reference to polyamic acid solution respectively on the silicon substrate of 4 inches sizes of diameter, be coated with method of spin coating, make and form the thick film of 8 μ m, then, in nitrogen atmosphere, respectively at heating under 70 ℃, 160 ℃, 250 ℃ and the 350 ℃ of temperature 2 hours, 1 hour, 30 minutes and 1 hour, then on silicon substrate, form polyimide film and with reference to polyimide film.
The polyimide film that makes is like this analyzed with infrared spectra, obtained result shown in Figure 4.
In addition, measure the photoabsorption of polyimide film in optical communication wavelength region (0.8～1.7 μ m) that makes like this, the light transmission loss is minimum in this wavelength region may as can be known.
Have again, measured the polyimide film that makes like this and with reference to polyimide film 633 and the specific refractory power at 1300nm place, obtain the result shown in the following table 2.
Table 2
As shown in table 2, polyimide film refringence of the present invention has surpassed 0.5%, so can think that it can be used for various optical materials with photoelectricity guided wave Lu Weizhu.
Claims (10)
1. polyamic acid that contains the repeating unit shown in the following formula (i),
In the formula, X represents the 4 valency groups that following formula is represented;
Wherein, R
1And R
2The expression halogen; M and m ' expression are connected on the R on the corresponding phenyl ring
1And R
2Number, represent 1～3 integer respectively; Z represents the divalent group that connecting key or following formula are represented,
Wherein, Y ' and Y " the expression halogen atom; R and r ' expression is connected on Y ' and the Y on the corresponding phenyl ring " number, represent 1～4 integer respectively;
Y represents chlorine, bromine or iodine atom; Be connected in the p expression (i) the fluorine atom F on the corresponding phenyl ring number, be 0～3 integer; Q is 1～4 integer; P+q is 4.
2. the polyamic acid of claim 1 is characterized in that, also contains the repeating unit of useful following formula shown in (ii),
In the formula, X represents 4 valency organic groups described in the above-mentioned formula (i).
3. claim 1 or 2 polyamic acid is characterized in that Z represents the divalent group that connecting key or following formula are represented,
Wherein, Y ' expression halogen atom; R represents to be connected on the number of the Y ' on the corresponding phenyl ring, the integer of expression 1～4.
4. polyimide that contains the repeating unit of useful following formula shown in (iii),
In the formula, X represents the 4 valency organic groups that following formula is represented;
Wherein, R
1And R
2The expression halogen; M and m ' expression are connected on the R on the corresponding phenyl ring
1And R
2Number, represent 1～3 integer respectively; Z represents the divalent group that connecting key or following formula are represented,
Wherein, Y ' and Y " the expression halogen atom; R and r ' expression is connected on Y ' and the Y on the corresponding phenyl ring " number, represent 1～4 integer respectively;
Y represents chlorine, bromine or iodine atom; The p expression be connected in (iii) the fluorine atom F on the corresponding phenyl ring number, be 0～3 integer; Q is 1～4 integer; P+q is 4.
5. the polyimide of claim 4 is characterized in that, also contains the repeating unit of useful following formula shown in (iv),
In the formula, X represents 4 valency organic groups described in above-mentioned formula (iii).
6. claim 4 or 5 polyimide is characterized in that Z represents the divalent group that connecting key or following formula are represented,
Wherein, Y ' expression halogen atom; R represents to be connected on the number of the Y ' on the corresponding phenyl ring, the integer of expression 1～4.
7. the preparation method of the polyamic acid of claim 1 is characterized in that, be included in the organic solvent, with following formula (1 vii), 3-diamino benzene derivant and following formula (the halo tetracarboxylic acid viii), its acid anhydrides or acyl chloride reaction,
In the formula, Y represents chlorine, bromine or iodine atom; The p expression (be connected on vii) the fluorine atom F on the corresponding phenyl ring number, be 0～3 integer; Q is 1～4 integer; P+q is 4;
In the formula, X represents the 4 valency organic groups that following formula is represented;
Wherein, R
1And R
2The expression halogen; M and m ' expression are connected on the R on the corresponding phenyl ring
1And R
2Number, represent 1～3 integer respectively; Z represents the divalent group that connecting key or following formula are represented,
Wherein, Y ' and Y " the expression halogen atom; R and r ' expression is connected on Y ' and the Y on the corresponding phenyl ring " number, represent 1～4 integer respectively.
8. the preparation method of the polyimide of claim 4 is characterized in that, comprises the polyamic acid of claim 1 step through the heating closed loop.
9. the preparation method of the polyimide of claim 5 is characterized in that, comprises the polyamic acid of claim 2 step through the heating closed loop.
10. optical material that contains the polyimide of claim 4 or 5.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP213744/2001 | 2001-07-13 | ||
| JP2001213744A JP4347537B2 (en) | 2001-07-13 | 2001-07-13 | Polyamic acid and polyimide and optical material |
| JP213743/2001 | 2001-07-13 | ||
| JP2001213743A JP3990122B2 (en) | 2001-07-13 | 2001-07-13 | Polyamic acid, polyimide and optical material |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021262012A Division CN1264893C (en) | 2001-07-13 | 2002-07-15 | Okumura acid, polyimide and optical material |
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|---|---|
| CN1900142A CN1900142A (en) | 2007-01-24 |
| CN1900142B true CN1900142B (en) | 2010-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100798426A Expired - Fee Related CN1900142B (en) | 2001-07-13 | 2002-07-15 | Polyamic acid, polyimide and optical material |
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| JP (1) | JP3990122B2 (en) |
| CN (1) | CN1900142B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3892795B2 (en) | 2002-10-31 | 2007-03-14 | 株式会社東芝 | Polyimide optical material, polyimide precursor solution, and optical waveguide device |
| US7741426B2 (en) | 2003-06-23 | 2010-06-22 | Nippon Shokubai Co., Ltd | Method for production of fluorinated phenylenediamine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0438382A1 (en) * | 1990-01-19 | 1991-07-24 | Ciba-Geigy Ag | Disubstituted aromatic dianhydrides and polyimides prepared therefrom |
| US5286841A (en) * | 1991-08-27 | 1994-02-15 | E. I. Du Pont De Nemours And Company | Fluorine-containing diamines, polyamides, and polyimides |
-
2001
- 2001-07-13 JP JP2001213743A patent/JP3990122B2/en not_active Expired - Fee Related
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2002
- 2002-07-15 CN CN2006100798426A patent/CN1900142B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0438382A1 (en) * | 1990-01-19 | 1991-07-24 | Ciba-Geigy Ag | Disubstituted aromatic dianhydrides and polyimides prepared therefrom |
| US5286841A (en) * | 1991-08-27 | 1994-02-15 | E. I. Du Pont De Nemours And Company | Fluorine-containing diamines, polyamides, and polyimides |
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|---|---|
| JP2003026799A (en) | 2003-01-29 |
| CN1900142A (en) | 2007-01-24 |
| JP3990122B2 (en) | 2007-10-10 |
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